Neonatal seizures and neonatal epileptic syndromes |
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Authors: | Mizrah E M |
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Affiliation: | Section of Neurophysiology, Department of Neurology, Baylor College of Medicine, Houston, Texas 77030, USA. emizrahi@bcm.tmc.edu |
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Abstract: | The neonatal period is defined as the first 28 days of life of a term infant; for premature infants the limit of this period is 44 completed weeks of the infant's conceptional age (CA)-defined as the chronological age plus gestational age (GA) at birth. The clinical and electroencephalographic (EEG) manifestations of seizures during this period are determined primarily by the development features of the immature brain at the time of seizure onset, but are also related to the type and diversity of etiologies and risk-factors for seizures neonates may face early in life. Neonatal seizures may be strikingly different from the clinical and electrical seizures of older children and adults. In addition, findings from basic science investigations suggest that immature animals are more likely to experience seizures in response to injury than more mature animals, although the developing brain is less susceptible to seizure-induced injury. |
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